Rear bumper for a vehicle



FIG. 1 is a perspective view of a rear bumper for a vehicle according to my novel design;

FIG. 2 is a front view of the rear bumper for a vehicle according to my novel design;

FIG. 3 is a left side view of the rear bumper for a vehicle according to my novel design;

FIG. 4 is a right side view of the rear bumper for a vehicle according to my novel design;

FIG. 5 is a top view of the rear bumper for a vehicle according to my novel design; and,

FIG. 6 is a bottom view of the rear bumper for a vehicle according to my novel design.

The broken lines included depict environment and are not part of the claimed design. 

The ornamental design for a rear bumper for a vehicle, as shown and described. 